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How to Fix Cloudflare 522 Error: Origin Server Timeout - Windows Defender Real-Time Protection Won't Turn On – Fix Guide-How to Fix Nginx Backend Connection Refused Behind Cloudflare

Updated 2026-07-28 06:41:52cloud-software
How to Fix Cloudflare 522 Error: Origin Server Timeout - Windows Defender Real-Time Protection Won't Turn On – Fix Guide-How to Fix Nginx Backend Connection Refused Behind Cloudflare
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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